6.15-stable review patch. If anyone has any objections, please let me know.
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From: Boris Brezillon boris.brezillon@collabora.com
[ Upstream commit 6c4a3fa26799785c1873aacabcfd9b2d27e8dc97 ]
Interrupts are automatically unmasked in panthor_mmu_irq_threaded_handler() when the handler returns. Unmasking prematurely might generate spurious interrupts if the IRQ line is shared.
Changes in v2: - New patch
Changes in v3: - Add R-bs
Reviewed-by: Liviu Dudau liviu.dudau@arm.com Reviewed-by: Steven Price steven.price@arm.com Link: https://lore.kernel.org/r/20250404080933.2912674-6-boris.brezillon@collabora... Signed-off-by: Boris Brezillon boris.brezillon@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/panthor/panthor_mmu.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c index 7cca97d298ea1..cc838bfc82e00 100644 --- a/drivers/gpu/drm/panthor/panthor_mmu.c +++ b/drivers/gpu/drm/panthor/panthor_mmu.c @@ -1714,7 +1714,6 @@ static void panthor_mmu_irq_handler(struct panthor_device *ptdev, u32 status) * re-enabled. */ ptdev->mmu->irq.mask = new_int_mask; - gpu_write(ptdev, MMU_INT_MASK, new_int_mask);
if (ptdev->mmu->as.slots[as].vm) ptdev->mmu->as.slots[as].vm->unhandled_fault = true;